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@ARTICLE{Aziz2009256-ChannelNeuralRecordingandDeltaCompressionMicrosystemWith3DElectrodesIEEEJOURNALOFSOLID-STATECIRCUITS,
  author = {Aziz, Joseph N. Y. and Abdelhalim, Karim and Shulyzki, Ruslana and
	
	 Genov, Roman and Bardakjian, Berj L. and Derchansky, Miron and Serletis,
	
	 Demitre and Carlen, Peter L.},
  title = {256-Channel Neural Recording and Delta Compression Microsystem With
	
	 3D Electrodes},
  journal = {IEEE JOURNAL OF SOLID-STATE CIRCUITS},
  year = {2009},
  volume = {44},
  pages = {995-1005},
  number = {3},
  month = mar,
  abstract = {A 3D microsystem for multi-site penetrating extracellular neural recording
	
	 from the brain is presented. A 16 x 16-channel neural recording interface
	
	 integrated prototype fabricated in 0.35 mu m CMOS occupies 3.5 mm
	
	 x 4.5 mm area. Each recording channel dissipates 15 mu W of power
	
	 with input-referred noise of 7 mu V-rms over 5 kHz bandwidth. A switched-capacitor
	
	 delta read-out data compression circuit trades recording accuracy
	
	 for the output data rate. An array of 1.5 mm platinum-coated microelectrodes
	
	 is bonded directly onto the die. Results of in vitro experimental
	
	 recordings from intact mouse hippocampus validate the circuit design
	
	 and the on-chip electrode bonding technology.},
  address = {445 HOES LANE, PISCATAWAY, NJ 08855 USA},
  affiliation = {Aziz, JNY (Reprint Author), Broadcom, Irvine, CA 92617 USA. {[}Aziz,
	
	 Joseph N. Y.; Abdelhalim, Karim; Shulyzki, Ruslana; Genov, Roman]
	
	 Univ Toronto, Dept Elect \& Comp Engn, Toronto, ON M5S 3G4, Canada.
	
	 {[}Bardakjian, Berj L.] Univ Toronto, Inst Biomat \& Biomed Engn,
	
	 Edward S Rogers Sr Dept Elect \& Comp Engn, Toronto, ON M5S 1A4,
	
	 Canada. {[}Derchansky, Miron; Serletis, Demitre; Carlen, Peter L.]
	
	 Univ Toronto, Toronto Western Res Inst, Toronto, ON M5S 1A4, Canada.
	
	 {[}Derchansky, Miron; Serletis, Demitre; Carlen, Peter L.] Univ Toronto,
	
	 Dept Physiol, Toronto, ON M5S 1A4, Canada.},
  author-email = {roman@eecg.utoronto.ca},
  cited-references = {ATLURI S, 2006, P IEEE INT S CIRC SY, P1131. AZIZ J, 2006, P IEEE
	
	 INT S CIRC SY. AZIZ J, 2007, IEEE INT SOL STAT CI, P160. AZIZ JNY,
	
	 2006, P IEEE INT S CIRC SY, P5075. AZIZ JNY, 2007, IEEE T BIOMED
	
	 CIRCUI, V1. AZIZ JNY, 2007, P IEEE INT S CIRC SY. CHAIMANONART N,
	
	 2005, P ANN INT IEEE EMBS, P5194. DELBRUCK T, 1994, P IEEE INT S
	
	 CIRC SY, V4, P339. ENZ CC, 1996, P IEEE, V84, P1584. EVERSMANN B,
	
	 2003, IEEE J SOLID-ST CIRC, V38, P2306, DOI 10.1109/JSSC.2003.819174.
	
	 HARRISON R, 2006, IEEE INT SOL STAT C, P2258. HARRISON RR, 2003,
	
	 IEEE J SOLID-ST CIRC, V38, P958, DOI 10.1009/JSSC.2003.811979. HARRISON
	
	 RR, 2007, IEEE CUST INTEGR CIR, P115. HEER F, 2006, IEEE J SOLID-ST
	
	 CIRC, V41, P1620, DOI 10.1109/JSSC.2006.873677. KIM S, 2006, P 2006
	
	 INT C IEEE EN, P2986. MALLIK U, 2005, IEEE ISSCC, P362. MOHSENI P,
	
	 2004, IEEE T BIO-MED ENG, V51, P832, DOI 10.1109/TBME.2004.824126.
	
	 MOTCHENBACHER CD, 1993, LOW NOISE ELECT SYST. OLSSON RH, 2005, IEEE
	
	 J SOLID-ST CIRC, V40, P2796. PATTERSON WR, 2004, IEEE T BIO-MED ENG,
	
	 V51, P1845, DOI 10.1109/TBME.2004.831521. RILEY G, 1987, SURFACE
	
	 MOUNT INT, P535. STEYAERT MSJ, 1987, IEEE J SOLID-ST CIRC, V22, P1163.
	
	 TSIVIDIS Y, 2003, OPERATION MODELING M. WATTANAPANITCH W, 2007, IEEE
	
	 T BIOMED CIRC S, V1, P136, DOI 10.1109/TBCAS.2007.907868. WISE KD,
	
	 2005, IEEE ENG MED BIOL, V24, P22.},
  doc-delivery-number = {415FE},
  doi = {10.1109/JSSC.2008.2010997},
  file = {Draft:JabRef\\Aziz2009256-ChannelNeuralRecordingandDeltaCompressionMicrosystemWith3DElectrodesIEEEJOURNALOFSOLID-STATECIRCUITS_draft.pdf:PDF;Aziz2009256-ChannelNeuralRecordingandDeltaCompressionMicrosystemWith3DElectrodesIEEEJOURNALOFSOLID-STATECIRCUITS.pdf:JabRef\\Aziz2009256-ChannelNeuralRecordingandDeltaCompressionMicrosystemWith3DElectrodesIEEEJOURNALOFSOLID-STATECIRCUITS.pdf:PDF},
  issn = {0018-9200},
  journal-iso = {IEEE J. Solid-State Circuit},
  keywords = {Multi-channel recording; microelectrodes; extracellular recording;
	
	 electrode array; implantable; brain; hippocampus; delta compression;
	
	 neural amplifier},
  keywords-plus = {AMPLIFIER; STABILIZATION; CIRCUIT; ARRAY},
  language = {English},
  number-of-cited-references = {25},
  publisher = {IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC},
  subject-category = {Engineering, Electrical \& Electronic},
  times-cited = {2},
  timestamp = {10.04.15.11.41},
  type = {Article},
  unique-id = {ISI:000263918900029}
}

@ARTICLE{BBalakrisnan2009PatterningPDMSusingacombinationofwetanddryetchingJournalofMicromechanicsandMicroengineering,
  author = {B Balakrisnan , S Patil and E Smela},
  title = {Patterning PDMS using a combination of wet and dry etching},
  journal = {Journal of Micromechanics and Microengineering},
  year = {2009},
  volume = {19},
  pages = {047002},
  number = {4},
  abstract = {PDMS films of 10 μm thickness can be patterned within 30 min by combining
	
	 dry etching to achieve substantially vertical sidewalls with wet
	
	 etching to achieve high etch rates and to protect the underlying
	
	 substrate from attack. Dry etching alone would have taken 5 h, and
	
	 wet etching alone would produce severe undercutting. In addition,
	
	 using either technique alone produces undesirable surface morphologies.
	
	 The mask used during etching is critical to a successful patterning
	
	 outcome. E-beam evaporated Al was found to work well, adhering strongly
	
	 to oxygen-plasma-treated PDMS and holding up well during both dry
	
	 and wet etching. To prevent wrinkling of the PDMS, a fast deposition
	
	 rate should be used.},
  file = {BBalakrisnan2009PatterningPDMSusingacombinationofwetanddryetchingJournalofMicromechanicsandMicroengineering.pdf:JabRef\\BBalakrisnan2009PatterningPDMSusingacombinationofwetanddryetchingJournalofMicromechanicsandMicroengineering.pdf:PDF},
  timestamp = {09.06.17.13.03},
  url = {http://stacks.iop.org/0960-1317/19/i=4/a=047002}
}

@ARTICLE{Baccus1998Synapticfacilitationbyreflectedactionpotentials--enhancementoftransmissionwhennerveimpulsesreversedirectionataxonbranchpoints.ProcNatlAcadSciUSA,
  author = {S. A. Baccus},
  title = {Synaptic facilitation by reflected action potentials: enhancement
	
	 of transmission when nerve impulses reverse direction at axon branch
	
	 points.},
  journal = {Proc Natl Acad Sci U S A},
  year = {1998},
  volume = {95},
  pages = {8345--8350},
  number = {14},
  month = jul,
  abstract = {A rapid, reversible enhancement of synaptic transmission from a sensory
	
	 neuron is reported and explained by impulses that reverse direction,
	
	 or reflect, at axon branch points. In leech mechanosensory neurons,
	
	 where one can detect reflection because it is possible simultaneously
	
	 to study electrical activity in separate branches, action potentials
	
	 reflected from branch points within the central nervous system under
	
	 physiological conditions. Synapses adjacent to these branch points
	
	 were activated twice in rapid succession, first by an impulse arriving
	
	 from the periphery and then by its reflection. This fast double-firing
	
	 facilitated synaptic transmission, increasing it to more than twice
	
	 its normal level. Reflection occurred within a range of resting membrane
	
	 potentials, and electrical activity produced by mechanical stimulation
	
	 changed membrane potential so as to produce and cease reflection.
	
	 A compartmental model was used to investigate how branch-point morphology
	
	 and electrical activity contribute to produce reflection. The model
	
	 shows that mechanisms that hyperpolarize the membrane so as to impair
	
	 action potential propagation can increase the range of structures
	
	 that can produce reflection. This suggests that reflection is more
	
	 likely to occur in other structures where impulses fail, such as
	
	 in axons and dendrites in the mammalian brain. In leech sensory neurons,
	
	 reflection increased transmission from central synapses only in those
	
	 axon branches that innervate the edges of the receptive field in
	
	 the skin, thereby sharpening spatial contrast. Reflection thus allows
	
	 a neuron to amplify synaptic transmission from a selected group of
	
	 its branches in a way that can be regulated by electrical activity.},
  file = {Baccus1998Synapticfacilitationbyreflectedactionpotentials--enhancementoftransmissionwhennerveimpulsesreversedirectionataxonbranchpoints.ProcNatlAcadSciUSA.pdf:JabRef\\Baccus1998Synapticfacilitationbyreflectedactionpotentials--enhancementoftransmissionwhennerveimpulsesreversedirectionataxonbranchpoints.ProcNatlAcadSciUSA.pdf:PDF},
  institution = {Neuroscience Program, University of Miami, Miami, FL 33136, USA.
	
	 sbaccus@mednet.med.miami.edu},
  keywords = {Action Potentials, physiology; Animals; Axons, physiology; Electrophysiology;
	
	 Ganglia, Invertebrate, physiology; Ganglia, Sensory, physiology;
	
	 Leeches; Neurons, physiology; Synapses, physiology; Synaptic Transmission,
	
	 physiology},
  language = {eng},
  medline-pst = {ppublish},
  pmid = {9653189},
  timestamp = {11.05.01.13.02}
}

@ARTICLE{Brewer1995Serum-freeB27/neurobasalmediumsupportsdifferentiatedgrowthofneuronsfromthestriatumsubstantianigraseptumcerebralcortexcerebellumanddentategyrus.JNeurosciRes,
  author = {G. J. Brewer},
  title = {Serum-free B27/neurobasal medium supports differentiated growth of
	
	 neurons from the striatum, substantia nigra, septum, cerebral cortex,
	
	 cerebellum, and dentate gyrus.},
  journal = {J Neurosci Res},
  year = {1995},
  volume = {42},
  pages = {674--683},
  number = {5},
  month = dec,
  abstract = {Two fundamental questions about neuron cell culture were addressed.
	
	 Can one serum-free medium that was developed for optimum growth of
	
	 hippocampal neurons support the growth of neurons from other regions
	
	 of the brain? Is the region specific state of differentiation maintained
	
	 in culture? To answer these questions, we isolated neurons from six
	
	 other rat brain regions, placed them in culture in B27/Neurobasal
	
	 defined medium, and analyzed their morphology and growth dependence
	
	 on cell density after 4 days in culture. Neuronal identity was confirmed
	
	 by immunostaining with antibodies to neurofilament 200. Neurons from
	
	 each brain region maintained distinctive morphologies in culture
	
	 in the virtual absence of glia. Cells isolated from embryonic day
	
	 18 cerebral cortex by digestion with papain showed the same high
	
	 survival as hippocampal neurons, e.g., 70\% survival for cells plated
	
	 at 160/mm2. At this age and density, neurons from the septum showed
	
	 slightly lower survival, 45\%. Survival of dentate granule neurons
	
	 from postnatal day four brains was 30-40\%, significantly lower,
	
	 and relatively independent of plating density. This suggests an absence
	
	 of dependence on trophic factors or contact for dentate granule neurons.
	
	 Growth of cerebellar granule neurons isolated from postnatal day
	
	 7, 8, or 9 brains in B27/Neurobasal was compared to growth in BME/10\%
	
	 serum. Viability in serum-free medium at 4 days was much better than
	
	 that in serum, did not require KCl elevated to 25 mM, and occurred
	
	 without substantial growth of glia. Cerebellar granule neurons plated
	
	 at 1,280 cells/mm2 were maintained in culture for three weeks with
	
	 17\% of the original cell density surviving. Survival of cells isolated
	
	 from embryonic day 18 substantia nigra was 50\% at 160 cells/mm2
	
	 after 4 days, similar to that of striatum, but slightly less than
	
	 hippocampal neuron survival. The dopaminergic phenotype of the substantia
	
	 nigral neurons was maintained over 2 weeks in culture as judged by
	
	 immunoreactivity with antibodies to tyrosine hydroxylase. During
	
	 this time, immunoreactivity was found in the processes as they grew
	
	 out from the soma. Together, these studies suggest that B27/Neurobasal
	
	 will be a useful medium for maintaining the differentiated growth
	
	 of neurons from many brain regions. Potential applications of a common
	
	 growth medium for different neurons are discussed.},
  doi = {10.1002/jnr.490420510},
  institution = {Southern Illinois University School of Medicine, Springfield 62794-1220,
	
	 USA.},
  keywords = {Animals; Brain, anatomy /&/ histology/cytology/enzymology; Cell Culture
	
	 Techniques; Cell Survival; Cells, Cultured; Cerebellum, cytology/embryology;
	
	 Cerebral Cortex, cytology/embryology; Corpus Striatum, cytology/embryology;
	
	 Culture Media, Serum-Free; Dentate Gyrus, cytology/embryology; Electrophysiology;
	
	 Hippocampus, cytology/embryology; Neurofilament Proteins, metabolism;
	
	 Neurons, cytology/enzymology; Rats; Rats, Sprague-Dawley; Septum
	
	 Pellucidum, embryology; Substantia Nigra, cytology/embryology; Tyrosine
	
	 3-Monooxygenase, metabolism},
  pmid = {8600300},
  timestamp = {2008.12.12},
  url = {http://dx.doi.org/10.1002/jnr.490420510}
}

@ARTICLE{Brewer1997Isolationandcultureofadultrathippocampalneurons.JNeurosciMethods,
  author = {G. J. Brewer},
  title = {Isolation and culture of adult rat hippocampal neurons.},
  journal = {J Neurosci Methods},
  year = {1997},
  volume = {71},
  pages = {143--155},
  number = {2},
  month = feb,
  abstract = {Inability to culture adult central neurons and the failure of injured
	
	 neurons to regenerate in the brain could be due to genetic controls
	
	 or environmental inhibitors. We tested the environmental inhibitor
	
	 hypothesis by attempting to regenerate adult rat neurons in B27/Neurobasal
	
	 culture medium, a medium optimized for survival of embryonic neurons.
	
	 To isolate neurons from their numerous connections, papain was the
	
	 best of six different proteases screened on slices of hippocampus
	
	 for survival of isolated cells after 4 days of culture. Use of a
	
	 density gradient enabled separation of oligodendroglia and some enrichment
	
	 of neurons and microglia from considerable debris which was inhibitory
	
	 to sprouting and viability. With these techniques, about 900000 viable
	
	 neurons were isolated from each hippocampus of any age rat from birth
	
	 to 24-36 months, near the median mortality. FGF2 was found to enhance
	
	 viability at least 3-fold to 40-80\%, independent of age, without
	
	 affecting the length of the processes. Neurons were cultured for
	
	 more than 3 weeks. These methods demonstrate that hippocampal neurons
	
	 can regenerate axons and dendrites if provided with adequate nutrition
	
	 and if inhibitors are removed. They also will enable aging studies.
	
	 Therefore, the concept of environmental growth restriction may be
	
	 more appropriate for neurons in the brain than the concept of a genetic
	
	 block that precludes regeneration of processes.},
  institution = {Department of Medical Microbiology and Immunology, Southern Illinois
	
	 University School of Medicine, Springfield 62794-1220, USA. gbrewer@siumed.edu},
  keywords = {Age Factors; Animals; Cell Adhesion, physiology; Cell Culture Techniques,
	
	 methods; Cell Separation, methods; Cell Survival, physiology; Cells,
	
	 Cultured; Cerebral Cortex, cytology; Dose-Response Relationship,
	
	 Drug; Fibroblast Growth Factor 2, physiology; Glutamic Acid, pharmacology;
	
	 Hippocampus, cytology; Male; Neurons, cytology/drug effects; Osmolar
	
	 Concentration; Oxygen, pharmacology; Papain; Rats; Rats, Inbred F344;
	
	 Rats, Sprague-Dawley},
  pii = {S0165-0270(96)00136-7},
  pmid = {9128149},
  timestamp = {09.02.26.19.31}
}

@ARTICLE{Brewer2008NbActiv4mediumimprovementtoNeurobasal/B27increasesneuronsynapsedensitiesandnetworkspikeratesonmultielectrodearrays.JNeurosciMethods,
  author = {Gregory J Brewer and Michael D Boehler and Torrie T Jones and Bruce
	
	 C Wheeler},
  title = {NbActiv4 medium improvement to Neurobasal/B27 increases neuron synapse
	
	 densities and network spike rates on multielectrode arrays.},
  journal = {J Neurosci Methods},
  year = {2008},
  volume = {170},
  pages = {181--187},
  number = {2},
  month = may,
  abstract = {The most interesting property of neurons is their long-distance propagation
	
	 of signals as spiking action potentials. Since 1993, Neurobasal/B27
	
	 has been used as a serum-free medium optimized for hippocampal neuron
	
	 survival. Neurons on microelectrode arrays (MEA) were used as an
	
	 assay system to increase spontaneous spike rates in media of different
	
	 compositions. We find spike rates of 0.5 s(-1) (Hz) for rat embryonic
	
	 hippocampal neurons cultured in Neurobasal/B27, lower than cultures
	
	 in serum-based media and offering an opportunity for improvement.
	
	 NbActiv4 was formulated by addition of creatine, cholesterol and
	
	 estrogen to Neurobasal/B27 that synergistically produced an eightfold
	
	 increase in spontaneous spike activity. The increased activity with
	
	 NbActiv4 correlated with a twofold increase in immunoreactive synaptophysin
	
	 bright puncta and GluR1 total puncta. Characteristic of synaptic
	
	 scaling, immunoreactive GABAAbeta puncta also increased 1.5-fold
	
	 and NMDA-R1 puncta increased 1.8-fold. Neuron survival in NbActiv4
	
	 equaled that in Neurobasal/B27, but with slightly higher astroglia.
	
	 Resting respiratory demand was decreased and demand capacity was
	
	 increased in NbActiv4, indicating less stress and higher efficiency.
	
	 These results show that NbActiv4 is an improvement to Neurobasal/B27
	
	 for cultured networks with an increased density of synapses and transmitter
	
	 receptors which produces higher spontaneous spike rates in neuron
	
	 networks.},
  doi = {10.1016/j.jneumeth.2008.01.009},
  institution = {Southern Illinois University School of Medicine, Springfield, IL
	
	 62794-9626, USA. gbrewer@siumed.edu},
  keywords = {Cell Survival; Cells, Cultured; Culture Media; Electrophysiology;
	
	 Hippocampus, cytology; Humans; Image Processing, Computer-Assisted;
	
	 Immunohistochemistry; Kinetics; Microelectrodes; Nerve Net, physiology;
	
	 Neurons, physiology; Oxygen Consumption, physiology; Oxygen, analysis;
	
	 Synapses, physiology},
  pii = {S0165-0270(08)00039-3},
  pmid = {18308400},
  timestamp = {09.02.26.19.31},
  url = {http://dx.doi.org/10.1016/j.jneumeth.2008.01.009}
}

